Buscar
Mostrando ítems 91-100 de 1624
Surface pauses in relation to dive duration in imperial cormorants; how much time for a breather?
(Company of Biologists, 2004)
Air-breathing animals diving to forage can optimize time underwater by diving with just enough oxygen for the projected performance underwater. By so doing they surface with minimal body oxygen levels, which leads to maximal ...
Insulin effects on honeybee appetitive behaviour
(Company of Biologists, 2016-10)
Worker honeybees (Apis mellifera) carry out multiple tasks throughout their adult lifespan. It has been suggested that the insulin/insulin-like signalling pathway participates in regulating behavioural maturation in eusocial ...
Visuo-motor transformations involved in the escape response to looming stimuli in the crab Neohelice (=Chasmagnathus) granulata
(Company of Biologists, 2012)
Escape responses to directly approaching predators represent one instance of an animal s ability to avoid collision. Usually, such responses can be easily evoked in the laboratory using two-dimensional computer simulations ...
Diversity in cell motility reveals the dynamic nature of the formation of zebrafish taste sensory organs
(Company of Biologists, 2016-06)
Taste buds are sensory organs in jawed vertebrates, composed of distinct cell types that detect and transduce specific taste qualities. Taste bud cells differentiate from oropharyngeal epithelial progenitors, which are ...
BRL1 and BRL3 are novel brassinosteroid receptors that function in vascular differentiation in Arabidopsis
(Company of Biologists, 2004-11)
Plant steroid hormones, brassinosteroids (BRs), are perceived by the plasma membrane-localized leucine-rich-repeat-receptor kinase BRI1. Based on sequence similarity, we have identified three members of the BRI1 family, ...
Effect of body mass and melanism on heat balance in Liolaemus lizards of the goetschi clade
(Company of Biologists, 2016-08)
The body temperature of ectotherms depends on the environmental temperatures and behavioral adjustments, but morphology may also have an effect. Forexample, in colder environments, animals tend to be larger and to show ...
Object approach computation by a giant neuron and its relation with the speed of escape in the crab Neohelice
(Company of Biologists, 2016-09)
Upon detection of an approaching object, the crab Neohelice granulata continuously regulates the direction and speed of escape according to ongoing visual information. These visuomotor transformations are thought to be ...
Activity of intestinal carbohydrases responds to multiple dietary signals in nestling House sparrows
(Company of Biologists, 2013-06)
The ‘adaptive modulation hypothesis’ predicts that activity of digestive enzymes should match the amount of their substrates in diet. Interestingly, many passerine birds do not adjust the activity of intestinal carbohydrases ...
Bitter stimuli modulate the feeding decision of a blood-sucking insect via two sensory inputs
(Company of Biologists, 2014-08)
The gustatory system of animals is involved in food quality assessment and controls the feeding decision of an individual confronted with a potential alimentary source. Triatomines are haematophagous insects that feed on ...
Mating-induced transient inhibition of responses to sex pheromone in a male moth is not mediated by octopamine or serotonin
(Company Of Biologists, 2010-01)
In the male moth, Agrotis ipsilon, mating induces a transient inhibition of behavioural and central nervous responses to sex pheromone. Newly mated males are not attracted to sex pheromone, and the sensitivity of their ...